[Pure aluminum foil bags bags and plated difference]: one, from the material that aluminum is aluminum bags, high purity aluminum bags mixed composites. Second, from a cost that is higher than the price of aluminum bags aluminum bags. Third, from the performance, said moisture-proof aluminum bag, the cooling effect is better than aluminum bags completely dark aluminum bags, aluminum bags are four shading effects from the use of, the aluminum vacuum bag is more suitable for loading cooked and meat, aluminum bags for holding tea, powder, electronic components and other aluminum bag is a soft material, with a certain degree of elongation, and aluminum bags are brittle. Water vapor transmission: ≤0.006g / m · 24h (40 ℃ · 90% RH) Oxygen permeation amount: ≤0.024ml / (. M · 24h · 0.1mPa) Composite strength:> 25 N / 15mm Edge Strength:> 35 Newton / 15mm puncture strength:> 24 lbs sealing temperature: 150 ℃ ± 10 ℃ intelligent packaging materials. 4.0 With the advent of the industrial era, the development and application of intelligent packaging, food packaging will become the new trends, with a huge market potential. It is expected that future smart packaging food contain more complex, remote-readable non-visual information. Safety labels and radio frequency identification (RFID) tags are at the beginning of an electronic tag, in addition to product identification information, date of production, price, electronic tags can be used as time - temperature, leakage, or freshness indicator.